/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.table.catalog.listener;

import org.apache.flink.configuration.Configuration;
import org.apache.flink.table.factories.TableFactoryUtil;

import org.junit.jupiter.api.Test;

import java.util.Arrays;
import java.util.stream.Collectors;

import static org.apache.flink.table.api.config.TableConfigOptions.TABLE_CATALOG_MODIFICATION_LISTENERS;
import static org.assertj.core.api.Assertions.assertThat;

/** Tests to discovery catalog listeners. */
public class CatalogListenerFactoryTest {
    @Test
    void testFindCatalogModificationListenerList() {
        Configuration configuration = new Configuration();
        // Find no listener
        assertThat(
                        TableFactoryUtil.findCatalogModificationListenerList(
                                        configuration, ClassLoader.getSystemClassLoader())
                                .isEmpty())
                .isTrue();

        // Find listeners
        configuration.set(
                TABLE_CATALOG_MODIFICATION_LISTENERS,
                Arrays.asList(CatalogFactory1.IDENTIFIER, CatalogFactory2.IDENTIFIER));
        assertThat(
                        TableFactoryUtil.findCatalogModificationListenerList(
                                        configuration, ClassLoader.getSystemClassLoader())
                                .stream()
                                .map(l -> l.getClass().getName())
                                .collect(Collectors.toList()))
                .isEqualTo(
                        Arrays.asList(
                                CatalogListener1.class.getName(),
                                CatalogListener2.class.getName()));
    }
}
